| MODEL NO. | DDK-B17 |
| SIZE(LxW) | 210mmx122mm |
| CLASS | SLIM |
| COVER | FOLLOW THE SPEC OF SAMPLE |
| RAIL | BMX or FREESTYTLE SADDLE SEAT POST DIA 25.4mm ALLOY6061 or STEEL |
| LOGO | DDK |
| WEIGHT/g | 194g |
B18
| MODEL NO. | DDK-B18 |
| SIZE(LxW) | 220mmx125mm |
| CLASS | PRO |
| COVER | FOLLOW THE SPEC OF SAMPLE |
| RAIL | BMX or FREESTYTLE SADDLE SEAT POST DIA 25.4mm ALLOY6061 or STEEL |
| LOGO | DDK |
| WEIGHT/g | x |